Heat Treatment of Ferrous Alloys

LECTURE PRESENTATION

Reading Assignment

  • 5.1 Introduction to Heat Treatment
  • 5.2 Processing Heat Treatments
  • 5.3 Heat Treatments Used to Increase Strength
  • 5.5 Strengthening Heat Treatments for Steel
  • 5.6 Surface Hardening of Steel
  • BBC Engineering Craft Series EP4 Heat Treatment

Recommended Reading

See Also

Outline

Heating Methods

Furnace

Torch

Induction

Fluidized Bed Furnaces

Hardening Processes

Quenching

Media

    • Brine
    • Water
    • Oils
    • Molten Salts
    • Air

Agitation

Products of Rapid Cooling

Bainite

Martensite

Retained Austenite

Hardenability

Joiminy End-Quench Hardenabiltiy Test

Surface Hardening

Selective Surface Heating

Changing Surface Chemistry

    • Carburizing
    • Nitriding

Softening Processes

Tempering

Austempering

Martempering

Annealing

Restoration of original properties

Annealing

Full annealing

Process annealing

Stress-relief annealing

Normalizing

Spheroidizing

 


Additional Information

How it’s made clip – Making Nuts & Bolts

Heat treating of Aluminum (Video 23:06)

Speedy Metals recommendations for heat treating  A2

Heat Treatment (Video 13:49)

MIC Heat Treating (Video 2:56)